public class AssertingScorer extends Scorer
Scorer.ChildScorer
Modifier and Type | Method and Description |
---|---|
int |
docID()
Returns the doc ID that is currently being scored.
|
java.util.Collection<Scorer.ChildScorer> |
getChildren()
Returns child sub-scorers positioned on the current document
Note that this method should not be called on Scorers passed to
LeafCollector.setScorer(Scorer) ,
as these may be synthetic Scorers produced by BulkScorer which will throw an Exception. |
Scorer |
getIn() |
DocIdSetIterator |
iterator()
Return a
DocIdSetIterator over matching documents. |
float |
score()
Returns the score of the current document matching the query.
|
java.lang.String |
toString() |
TwoPhaseIterator |
twoPhaseIterator()
Optional method: Return a
TwoPhaseIterator view of this
Scorer . |
static Scorer |
wrap(java.util.Random random,
Scorer other,
boolean canScore) |
public Scorer getIn()
public float score() throws java.io.IOException
Scorer
DocIdSetIterator.nextDoc()
or
DocIdSetIterator.advance(int)
is called on the Scorer.iterator()
the first time, or when called from within LeafCollector.collect(int)
.public java.util.Collection<Scorer.ChildScorer> getChildren()
Scorer
LeafCollector.setScorer(Scorer)
,
as these may be synthetic Scorers produced by BulkScorer
which will throw an Exception.getChildren
in class Scorer
public int docID()
Scorer
-1
if the Scorer.iterator()
is not positioned
or DocIdSetIterator.NO_MORE_DOCS
if it has been entirely consumed.docID
in class Scorer
DocIdSetIterator.docID()
public java.lang.String toString()
toString
in class java.lang.Object
public DocIdSetIterator iterator()
Scorer
DocIdSetIterator
over matching documents.
The returned iterator will either be positioned on -1
if no
documents have been scored yet, DocIdSetIterator.NO_MORE_DOCS
if all documents have been scored already, or the last document id that
has been scored otherwise.
The returned iterator is a view: calling this method several times will
return iterators that have the same state.public TwoPhaseIterator twoPhaseIterator()
Scorer
TwoPhaseIterator
view of this
Scorer
. A return value of null
indicates that
two-phase iteration is not supported.
Note that the returned TwoPhaseIterator
's
approximation
must
advance synchronously with the Scorer.iterator()
: advancing the
approximation must advance the iterator and vice-versa.
Implementing this method is typically useful on Scorer
s
that have a high per-document overhead in order to confirm matches.
The default implementation returns null
.twoPhaseIterator
in class Scorer
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